The MS51831-203L Key Locked Insert is a precision-engineered fastener designed for secure and reliable assembly in industrial applications. It is commonly used in machinery, automation, and equipment where tamper-resistant connections are essential. Its robust construction ensures durability and stability in demanding environments, making it ideal for critical fastening needs.This component is manufactured to the applicable MS, AN, or NAS specification, ensuring compliance with recognized military and aerospace dimensional, material, and performance requirements. Material certifications, Certificates of Conformance (CoC), and traceability are available where applicable.
hide-Quantity Increment:
1
note-Sold In:
EA
note-Units Per Package:
1
spec-Material:
Corrosion Resistant Steel
note-Note:
Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
hide-ItemID:
13398
spec-Length:
0.437"
spec-Features:
Heavy-Duty|Key Locked|Locked In
spec-Thread Type:
Internal Thread Lock
note-Industry Standards/Certification:
MS51831
spec-Alternate Item Number:
NAS1395
spec-Internal Thread Size:
0.3125"-24
spec-External Thread Size:
0.5000"-13
spec-Locking Tabs:
4
spec-Alternate Part Number:
NAS1395
note-Minimum Order Note:
Minimum order is 100. Must order in increments of 1.
note-Inventory Note:
Need additional stock? Call (877) 920-1876 or email
note-California Residents:
Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.